The quantity of the underlying security that the holder of an option possesses...
The number of units of an underlying specified in a contract. In stock options the standard contract size is 100 shares of stock. In futures options the contract size is one futures contract. In index options the contract size is an amount of cash equal to parity times the multiplier. In the case of currency options it varies.
The amount of the underlying asset which one futures contract represents, e.g. the contract size for a copper contract is 25 tonnes. This means that underlying one copper future is 25 tonnes of copper which the investor has the obligation to buy ( long future) or sell ( short future).
The number of shares of the underlying asset covered by an options contract. This size is usually 100 shares for one stock option contract unless otherwise adjusted for a special event (such as a stock split or stock dividend).
The amount of the underlying asset covered by the option contract. This is 100 shares for one equity option unless adjusted for a special event, such as a stock split or a stock dividend, or otherwise special by the listing exchange.
The number of shares of the underlying security, or the cash amount for Index options, represented by the option contract.
The number of underlying shares covered by one option contract. This is 100 shar...
For futures contracts, the quantity to be delivered.